Task #1209
Updated by Junxiao Shi about 10 years ago
Add **fragmentation in Ethernet sending path**. Each EthernetFace needs a single `ndnlp::Slicer`. Add **reassembly in Ethernet receiving path**. EthernetFace must distinguish the Package NDNLP sender address, and create one `ndnlp::PartialMessageStore` per sender. If receiver as a sender has been idle for some configuration duration, destroy its PartialMessageStore. service attached on a datagram channel.